A pregnant Jessica Simpson and her sis Ashlee spent Saturday afternoon together at Toys R' Us with their kids. The girls dropped some serious dough on little Maxwell and Bronx, picking up a Batman set for 4-year-old Bronx, while his cousin Maxwell seemed content with her pacifier and not overly interested in the booty she just scored.

Perhaps Jess was also stocking up for her baby boy on the way; the soon-to-be second-time mom is expecting a boy in July, which she says she'll name Ace ... nickname A.J.?